Congestion

ERCOT works to prevent or alleviate system congestion caused by excessively high demand for power transfers across the grid. Find the daily grid operations reports and data on commercially significant constraint (CSC)/closely related elements (CRE) flows and limits, CSC total transfer capabilities, CSC schedule impacts and interzonal congestion costs.

Current Information
Actual System Demand and CSC Flows and Limits – Real-Time Data Opens new browser window
CSC Flows and Limits – Annual Reports
Congestion Notices Opens new browser window
Commercially Significant Constraints Opens new browser window
CSC/CRE Data Opens new browser window
CSC Total Transfer Capability Opens new browser window
Daily Grid Operations Reports
Disclosure of Local Congestion Opens new browser window
Archives: 2002-2006
Interzonal Congestion Cost Summary
McCamey Area Near-Real-Time Information Opens new browser window

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Key Documents

Discontinued Reports

Out-of-Merit Energy and Local Balancing Energy Quantities (2002-2004)